Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
RC

Robert M. Carpenter — 3 Patents

General Motors: 2 patents #6,250 of 18,328Top 35%
IBM: 1 patents #44,794 of 70,183Top 65%
Centerville, OH: #227 of 668 inventorsTop 35%
Ohio: #23,384 of 73,341 inventorsTop 35%
Overall (All Time): #1,668,289 of 4,157,543Top 45%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4940348 Platen controlled sheetfeed permitting back-up for erasure Albert L. Akers, William D. Freeman, John E. Passafiume 1990-07-10
4596317 Disc brake piston and brake pad assembly Steve S. Nagai 1986-06-24
4458790 Caliper mounting suspension Charles T. Hoffman, Jr. 1984-07-10